#!/usr/bin/env node

const Writable = require('stream').Writable;

function GreenStream(){

  Writable.call(this);

  this._write=(chunk,encoding,callback)=>{
    process.stdout.write('\033[1;32m' + chunk + '\033[1;37m');
    callback();
  };
}
GreenStream.prototype = Writable.prototype;
let rs = new GreenStream();
process.stdin.pipe(rs);

